Body mass index predicts new-onset atrial fibrillation after cardiac surgery

Abstract

Body mass index, age, undergoing valve surgery and male gender, are independent risk factors for POAF.

Atrial Fibrillation at Mid-Term After Bioprosthetic Aortic Valve Replacement

“…Obesity has been related to early POAF, 19 particularly in patients >50 years of age 20 and in different surgical groups of both sexes. 22 In the Bramer et al study, only women with morbid obesity were at increased risk of POAF, although after adjustment for age, BMI was significantly associated with POAF in both sexes, but with weak OR. 22 These data have been summarized in a recent metaanalysis by Hernandez et al, which found a 12% increase in POAF in obese patients, compared to the non-obese patients.…”

“…22 In the Bramer et al study, only women with morbid obesity were at increased risk of POAF, although after adjustment for age, BMI was significantly associated with POAF in both sexes, but with weak OR. 22 These data have been summarized in a recent metaanalysis by Hernandez et al, which found a 12% increase in POAF in obese patients, compared to the non-obese patients. 30 The present subjects had a lower incidence of obesity (17%) than that reported in that meta-analysis (42%).…”

“…It is unknown whether predictors of early POAF are similar to those of later atrial arrhythmia. Obesity and metabolic syndrome are predictive for early POAF, 17,18 particularly in older patients 19-21 of both sexes 22 undergoing different kinds of cardiac surgery. It is unknown whether obesity has a role in the prediction of POAF at mid-term after surgery (MT-POAF), and how this could modify therapy.…”

A time-related parametric risk factor analysis for postoperative atrial fibrillation after heart surgery

“…Advanced age is the most consistent predisposing factor, with a 75% increase in the risk of developing POAF per decade. 6 Recent studies have implicated increased body mass index, prolonged ventilation, 7 and perioperative inflammation as additional risk factors. 2,6,8,9 Although there has been extensive research into the cause of POAF, mechanisms are still poorly understood.…”

Atrial Fibrillation; To Determine the Frequency and Its Predisposing Factors in Patients After Coronary Artery Bypass Grafting.

“…Moreover, some found BMI to be an independent predictor for new-onset AF in the general population. 21 Studies found that obesity, age and male gender to be independent predictors of post-operative AF. 13,14,15 Similarly in our study, we have observed the preoperative obesity (body mass index >30 kg/m2) in which there were 24.7% patients having obesity.…”